Electricity

Electricity Basics

100

Does electricity occur in nature?

Yes!

200

The two types of charges: positive and negative come from what particles respectively?

+ : Protons

- : Electrons

300

When charges pull on each other, it's called

Attraction

400

If a proton and a proton are acting a force upon one another, what would they be doing?

Repulsion

500

Identify one material that acts as a conductor and one material that acts as an insulator.

Conductor: Metal

Insulator: Rubber or glass

More Electricity

100

How many types of electrical charges are there?

2

200

What is the smallest amount of a positive and a negative charge? (Two answers)

+ : 1.6 x 10^-19 C

- : -1.6 x 10^-19 C

300

How many picometers are in one meter?

10^-12

400

Conductors are materials that have _____ electrons.

Insulators are materials that ____ on tightly to their electrons

loose

hold

500

A charge of + 25 x 10¹² C and a another charge of -43 x 10¹² C are acting upon each other. 

How will these forces act on each other?

Attract

Coulomb's Law

100

What is the letter that represents the electric constant?

k

200

What is the electric constant equal to? (Number and units)

9 x 10⁹ Nm²/C²

300

Calculate the force between two charges using Coulomb's Law:

k = 9 x 10⁹ Nm²/C²

q₁ = 3 x 10^-6 C

q₂ = 4 x 10^-6 C

d = 1.5 x 10^-2 m

4.8 N x 10² N

400

Solve for Force of Electricity using Coulomb's Law:

k = 9 x 10⁹ Nm²/C²

q₁ = 5 x 10^-4 C

q₂ = 2 x 10^-5 C

d = 4 x 10^-2 m

5.63 x 10⁴ N

500

Solve for Force of Electricity using Coulomb's Law (round to the second decimal place) AND state whether the particles will attract or repel:

k = 9 x 10⁹ Nm²/C²

q₁ = 7 x 10^-8 C

q₂ = -2 x 10^-7 C

d = 0.05 m

5.04 x 10^-2 N

Attract

Current

100

The movement or flow of charged particles is called _______

Current

200

What makes current flow? AND What slows current down? (Two answers)

Voltage and Resistance

300

If the voltage is lower, then the current will be ______ (higher or lower)?

Lower

400

If 28 C of charge flows past in 4 seconds, what's the current?

7 A

500

If the current is 4 A and the voltage is 25 V, what's the power?

100 W

EM/Random

100

What is the name of the law that is represented by the equation I = V/R?

Ohm's Law

200

What is the name of the law that states a quantity varies as the inverse square of its distance from its source? Applies to the Force of Electricity equation

Inverse Square Law

300

The lower the resistance, the _____ the current

higher

400

A moving magnet produces a ________ _____?

Electric field

500

There will be no voltage or current induced in a loop of wire if there is no _____ within the loop.

change in the magnetic field